Parallels can handle running both Windows and Linux directly on your Mac's desktop. It's easy to set up and use. Once you do, you can share files, run programs, and even use your Mac gestures in the other operating system. The sale is part of the software's birthday sale. Starting right now at 9am PST the price is $28 and will rise every two hours until it's back to its retail price of $79.99. Thanks to Justin for sending this in.